"Players, open the case and check the contents," the message says.
Further in the message, Russia is tagged, which allegedly got the Ukrainian coat of arms, which is rather difficult to scribble.
So, according to the plot of the Squid Games, the participants in the survival game must use a needle to cut a figure out of caramel. If at the same time the caramel broke, the participant was killed. The players received different shapes: someone a circle, which is easy to cut, and someone an umbrella, which is almost impossible to cut without breaking the caramel.